"Worst" is an adjective.
it can also be a noun, adverb and a transitive verb, depending on the sentence structure in which the word is used.
The word worst *is* an adjective. It is the superlative of the adjective "bad" (bad-worse-worst). It can also be a noun if used without a following noun (the worst).
bad is an adjective worse is the comparative form of bad - comparative adjective worst is the superlative form of bad - superlative adjective
superlative
The word 'worst' is an adjective only when followed by a noun: This is the worst storm we've had in years.The word 'worst is an adverb when it modifies a verb: We don't live in the area worst hit by the storm.The word 'worst' is also a noun: We hope for the best but prepare for the worst.
worst
more terrible
'Worst' is primarily an adjective and so doesn't have a future tense.
Yes, it can be. Worst can be a superlative adjective or a superlative adverb (meaning most badly).
it is superlative
Yes. It's the superlative of bad.
Yes. it is the superlative form of the adjective bad. It can also be the superlative form of the adverb badly (most badly).
Worst is commonly used as an adjective. As an adverb, it means "in the worst way". Here is an example from Wiktionary: "My sore leg hurts worst when it's cold and rainy."